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The most common complaint about gradient cardioid configurations is a lack of impact. This article hopefully sheds some light on both tonal and temporal mechanisms that arguably lead to this apparent but unwarranted sensation.
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Animation 1 (click to play)This article focuses on the consequences of introducing an electronic level offset between sources in a 2-element cardioid configuration in an attempt to maximize cancellation.
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"Smoothing is essentially another type of averaging that is available only for Transfer Function displays (Phase or Magnitude). This feature helps to reduce "jagginess" on transfer function traces and can make trends in the frequency response of the system under test easier to see. On a smoothed transfer function trace, each data point is averaged together with some number of the immediately adjacent points on either side."1
Find out how this post-processing feature alters accurate data and provides a misleading frequency response or trend.
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Window size is the amount of time over which a waveform is sampled, known as time record, expressed in samples. For example, a window size of 128 samples at a sample rate of 48 kHz. Equals a time record of 128 samples x 1/48000 seconds = 0,0027 seconds or 2,7 milliseconds.
So how does this determine frequency resolution?
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Bob McCarthy talks about understanding phase. Using a series of easy to understand diagrams Bob teaches how to read phase responses.